<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>提交页面</title>
</head>
<body>
<center>
    <p>验证码：{{passport}}</p><br>
    <p>上传文件请用文件名标明姓名班级。</p>
    <form action="/" method="post" enctype="multipart/form-data">
        <input type="file" name="file" /><br>
        验证码：<input type="text" name="passport" /><br>
        <input type="hidden" name="s" value={{s}} /><br>
        <input type="submit" value="上传文件" />
    </form>
</center>
</body>
</html>